Galangal stomach-strengthening instant rice paste and preparation method thereof

Abstract

The IPC classification number of the present invention is A23L33 / 00, and specifically relates to a galangal stomachic instant rice paste and a preparation method thereof. The raw materials of the galangal stomachic instant rice paste include, by weight, 1 to 8 parts of galangal young shoot superfine powder, 3 to 20 parts of galangal rhizome extract emulsion, and 60 to 120 parts of coarse grain powder containing polished round-grained rice. The raw materials of the galangal stomachic instant rice paste also include black tea extract, tangerine peel extract, and ginger extract. The present invention invents a galangal stomachic instant rice paste using galangal combined with yam and other medicinal and edible ingredients with stomachic effects, which can meet the dietary needs of the above-mentioned population and people with the above-mentioned symptoms, and has good market value and prospects.

Description

Technical Field

[0001] The invention belongs to an IPC classification number of A23L33 / 00, and specifically relates to an instant rice paste with galangal and stomachic properties and a preparation method thereof. Technical Background

[0002] Alpinia officinalis is a traditional Chinese medicinal material and a food resource. It has a history of more than 1,000 years in my country. It is mainly distributed in Guangdong, Guangxi, Hainan and other provinces and regions in my country. The Compendium of Materia Medica records that it has the effects of warming the stomach and stopping vomiting, dispelling cold and relieving pain. It is often used to treat symptoms such as cold pain in the abdomen, vomiting due to stomach cold, belching and acid swallowing. The fast-paced modern life has led to the phenomenon that salaried workers often have reversed day and night and irregular diet for a long time, so most of them show symptoms of spleen and stomach deficiency and cold pain in the heart and abdomen.

[0003] A galangal stomachic convenient rice paste is invented by combining galangal with yam and other food and medicine ingredients with stomach-harmony effects. It can meet the dietary needs of the above-mentioned people and people with the above-mentioned symptoms, and has good market value and prospects. Summary of the invention

[0004] In the present invention, "moisture content" refers to the mass percentage of moisture content, wherein "moisture content less than 40wt%" means that the moisture content is lower than the moisture content less than 40wt% and higher than 10wt%, and more preferably, "moisture content less than 40wt%" in the present invention means that the moisture content is lower than the moisture content less than 40wt% and higher than 20wt% (for example, the moisture content is 35wt%, 32wt%, 28wt%, 25wt%, 22wt%, etc.); in order to prevent mildew, the moisture content of the raw materials of the galangal stomachic instant rice paste in the present invention is lower than 10wt%; in the present invention, "moisture content less than 10wt%" refers to a moisture content of 9wt%, 8wt%, 7wt%, 5wt%, 4wt%, 3wt%, etc.

[0005] The raw materials used in the present invention are all food grade. The "mesh" of the present invention refers to the number of holes per inch on the screen.

[0006] The invention aims to provide an instant rice paste with galangal for stomachic effect and a preparation method thereof. The instant rice paste with health-preserving effect and value of warming the stomach and dispelling cold is prepared by using galangal young shoots and galangal rhizomes as main raw materials.

[0007] The first aspect of the present invention provides a galangal stomachic instant rice paste, the raw materials of which include, by weight, 1 to 8 parts of galangal young shoot superfine powder, 3 to 20 parts of galangal rhizome extract emulsion, and 60 to 120 parts of coarse grain powder containing polished round-grained rice.

[0008] In some preferred embodiments, the raw materials of the galangal stomachic instant rice paste include, by weight, 3 to 9 parts of galangal young shoot superfine powder, 9 to 14 parts of galangal rhizome extract emulsion, and 75 to 100 parts of coarse grain powder including polished round-grained rice.

[0009] Galangal sprout superfine powder

[0010] The galangal young shoot ultrafine powder can be obtained from the market or prepared through the steps of killing green, drying, ultrafine grinding and the like.

[0011] In some embodiments, the preparation steps of the galangal young shoot ultrafine powder include washing the galangal young shoots, removing impurities, air-drying, withering, drying, and ultrafine grinding.

[0012] Among them, cleaning is mainly to remove impurities on the surface of the young sprouts of galangal, which is a conventional cleaning step.

[0013] Among them, the killing of green rice is microwave killing or high-temperature steam killing; preferably, the killing of green rice is high-temperature steam killing. During the preparation process, it was found that the rice paste prepared by high-temperature steam killing has a better taste.

[0014] Among them, the variety of galangal sprouts is honeycomb ginger.

[0015] The temperature of the high temperature steam killing is 170-200°C (preferably 180-190°C, for example 180°C, 185°C, 190°C, etc.).

[0016] In some embodiments, during the drying process for preparing the ultrafine powder of galangal young sprouts, the galangal young sprouts are first pre-dried at low temperature until the moisture content of the galangal young sprouts is less than 40 wt % and then rapidly dried at high temperature until the moisture content of the galangal young sprouts is less than 10 wt %.

[0017] Preferably, the temperature of low-temperature pre-drying is 50-70°C (for example, 50°C, 55°C, 60°C, 65°C, 68°C, 70°C, etc.); the temperature of high-temperature rapid drying is 75-95°C (preferably 80-90°C, for example, 80°C, 85°C, 88°C, 90°C, etc.).

[0018] The time of ultrafine grinding in the process of preparing ultrafine powder of young shoots of galangal is 1 to 30 minutes (preferably 5 to 15 minutes, for example, 5 minutes, 6 minutes, 8 minutes, 9 minutes, 10 minutes, 12 minutes, 14 minutes, 15 minutes, etc.).

[0019] The average particle size of the galangal young shoot ultrafine powder is 5 to 100 μm (preferably 10 to 50 μm, for example, 10 μm, 15 μm, 20 μm, 30 μm, 40 μm, 50 μm, etc.).

[0020] Galangal rhizome extract emulsion

[0021] The galangal rhizome extract contains diphenylheptanes, volatile oils, and flavonoid compounds. However, in the process of preparing rice paste, it was found that the content of galangin obtained by directly using the galangal rhizome extract to prepare rice paste was relatively low. After research, it was found that in some embodiments, the galangal rhizome extract emulsion is an emulsified galangal rhizome extract.

[0022] The emulsified galangal rhizome extract is prepared from a core material, an emulsifier, an embedding agent and soy protein isolate.

[0023] The core material consists of galangal rhizome extract and vegetable oil.

[0024] The weight ratio of the vegetable oil to the galangal rhizome extract in the core material is (0.5-1.5):1, preferably (0.8-1.2):1, for example, 0.8:1, 1:1, 1.2:1, etc.

[0025] The weight of the core material accounts for 30-50% (for example, 30%, 40%, 50%, etc.) of the total weight of the raw materials for preparing the emulsified galangal rhizome extract.

[0026] The weight of the emulsifier is 0.5-5% (preferably 1-3%, for example 1%, 2%, 3%, etc.) of the total weight of the raw materials for preparing the emulsified galangal rhizome extract.

[0027] The weight ratio of the soy protein isolate to the embedding agent is 1:(1-10), preferably 1:(2-5).

[0028] The vegetable oil is selected from one or more of algae oil, moringa seed oil, peanut oil, linseed oil, sunflower seed oil, and soybean oil (moringa seed oil is preferred).

[0029] The embedding agent is selected from one or more of starch, methylcellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, glucose powder, and cyclodextrin (preferably cyclodextrin, such as α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin, and more preferably β-cyclodextrin).

[0030] The emulsifier is selected from one or more of polyoxyethylene hydrogenated castor oil, polyoxyethylene castor oil, dehydrated sorbitol derivatives, polyoxyethylene sorbitol derivatives, glyceryl behenate, and fatty acid sucrose ester (glyceryl behenate is preferred).

[0031] The preparation method of the emulsified galangal rhizome extract comprises: adding vegetable oil to the galangal rhizome extract, dissolving it by ultrasonication, and then adding the remaining raw materials for preparing the galangal rhizome extract and homogenizing and emulsifying to obtain a fluid final product, which is the emulsified galangal rhizome extract.

[0032] The temperature conditions for ultrasonic dissolution are: 30-50°C for 12-48h.

[0033] In the present invention, adding soy protein isolate can provide better amino acids, but soy protein isolate has a certain smell. In the present invention, using specific emulsification and embedding means can better remove the smell of soy protein isolate, increase the fragrance of rice paste, and better prevent the loss of soy protein isolate nutrition. In addition, the active substances such as galangin in rice paste can be better preserved and have a higher content. In addition, the emulsified galangal rhizome extract has good dispersibility when it is diluted with water, and the dispersing effect is good. At the same time, the embedding technology can effectively prevent the active ingredients in galangal and the nutrients in rice paste from being degraded or deteriorated during processing and dispersing and loss.

[0034] The galangal rhizome extract can be obtained commercially or homemade.

[0035] In some embodiments, the preparation method of the galangal rhizome extract is supercritical CO2 extraction.

[0036] Specifically, the preparation method of the galangal rhizome extract comprises the following steps: removing impurities and roots from the galangal rhizome, slicing and drying at a constant temperature; coarsely crushing and sieving the dried galangal rhizome to obtain galangal rhizome powder; extracting the galangal rhizome powder using supercritical CO2 to obtain an extract, and concentrating the extract into a paste; adding purified water to the concentrated extract, stirring to dissolve and centrifuging to obtain a precipitate; and vacuum freeze-drying the centrifuged precipitate to obtain the galangal rhizome extract.

[0037] The galangal rhizome variety is honeycomb ginger.

[0038] The thickness of the slice is less than 30 mm (more preferably, the thickness of the slice is less than 10 mm, for example 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, etc.).

[0039] The temperature of the constant temperature drying is 40-80° C. (preferably 50-70° C., for example, 50° C., 60° C., 70° C., etc.). In order to prevent mildew, the end point of the constant temperature drying is that the moisture content of the rhizome of Alpinia galanga is less than 10 wt %.

[0040] The screening is through a 5-100 mesh sieve (preferably through a 10-50 mesh sieve, such as a 10 mesh sieve, a 20 mesh sieve, a 30 mesh sieve, a 40 mesh sieve, a 50 mesh sieve, etc.).

[0041] The conditions for supercritical CO2 extraction are: entrainer anhydrous ethanol, ethanol to material ratio of (8-15):1, extraction pressure of 15-25MPa, extraction temperature of 35-50°C, extraction time of 2.5-4h, CO2 flow rate of 20-30L / h.

[0042] Preferably, the conditions for supercritical CO2 extraction are: entrainer anhydrous ethanol, ethanol to material ratio of 10:1, extraction pressure 20MPa, extraction temperature 40°C, extraction time 3h, CO2 flow rate 25L / h.

[0043] The end point of concentration is the absence of ethanol taste.

[0044] The centrifugal conditions are: 8000-12000 r / min, 8-20 min.

[0045] The conditions for vacuum freeze drying are: temperature of -60 to 40°C, pressure of 30 to 50 Pa, and time of 15 to 30 hours.

[0046] Whole grain flour containing japonica rice

[0047] The coarse grain powder containing polished round-grained rice refers to the ultrafine powder prepared with polished round-grained rice as the main component.

[0048] The raw materials for preparing the coarse grain powder containing polished round-grained rice include polished round-grained rice.

[0049] In some embodiments, the raw materials for preparing the coarse grain powder containing polished round-grained rice further include one or more of jujube, coix seed, oat, black rice, purple rice, adzuki bean, lotus seed, peanut kernel, and yam.

[0050] In some preferred embodiments, the raw materials for preparing the coarse grain powder containing polished round-grained rice are coix seeds and yam.

[0051] In some more preferred embodiments, the raw materials for preparing the polished round-grained rice ultrafine powder include, by weight, 60-80 parts of polished round-grained rice, 5-10 parts of yam, and 5-10 parts of coix seeds (the weight parts here refer to the weight parts after drying).

[0052] In some embodiments, the preparation method of the coarse grain powder containing polished round-grained rice is: peel the yam, cut into 1-10 mm slices, and dry at 60-65° C. until the moisture content is less than 10wt%; wash and remove impurities from coix seeds and polished round-grained rice, and then dry at 60-70° C. until the moisture content is less than 10wt%; mix the dried yam, coix seeds, and polished round-grained rice according to weight proportions and perform ultrafine grinding for 5-30 minutes to obtain coarse grain powder containing polished round-grained rice.

[0053] In other embodiments, the preparation method of the coarse grain powder containing polished rice is: dried yam, coix seed, and polished rice are mixed according to weight proportions and ultrafinely ground for 5 to 30 minutes to obtain the coarse grain powder containing polished rice, and the dried yam, coix seed, and polished rice are all commercially available.

[0054] The yam variety is iron stick yam.

[0055] The average particle size of the coarse grain powder containing polished round-grained rice is 5 to 100 μm (preferably 10 to 50 μm, for example, 10 μm, 15 μm, 20 μm, 30 μm, 40 μm, 50 μm, etc.).

[0056] In some embodiments, the raw materials of the galangal stomachic instant rice paste also include one or more of polygonatum odoratum extract, black tea extract, roxburghii ethanol extract, tangerine peel extract, dendrobium extract, kudzu root extract, ginger extract, garlic extract, garcinia cambogia extract, and astragalus extract.

[0057] In some preferred embodiments, the raw materials of the galangal stomachic instant rice paste also include black tea extract, tangerine peel extract, and ginger extract. In some embodiments, the raw materials of the galangal stomachic instant rice paste also include, by weight, 0.4-1.5 parts of black tea extract, 0.5-1.5 parts of tangerine peel extract, and 0.5-1.5 parts of ginger extract.

[0058] In some preferred embodiments, the raw materials of the galangal stomachic instant rice paste further include, by weight, 0.6-1 part of black tea extract, 0.6-1 part of tangerine peel extract, and 0.6-1 part of ginger extract.

[0059] Among them, black tea extract, tangerine peel extract, and ginger extract can be obtained from the market or prepared at home.

[0060] In some preferred embodiments, the preparation method of the black tea extract comprises water extraction.

[0061] In some more preferred embodiments, the preparation method of the black tea extract comprises the following steps: removing impurities from the black tea leaves, adding pure water at a solid-liquid ratio of 1:5, extracting at 50-70°C for 2-5 hours, and collecting the extract; concentrating the extract at 70-80°C to a paste with a solid content greater than 60wt%, which is the black tea extract.

[0062] In some preferred embodiments, the preparation method of the tangerine peel extract comprises water extraction.

[0063] In some more preferred embodiments, the preparation method of the tangerine peel extract comprises the following steps: adding pure water at a solid-liquid ratio of 1:4, extracting at 60-80°C for 1.5-5h, and collecting the extract; concentrating the extract at 70-80°C to a paste with a solid content greater than 60wt%.

[0064] In some preferred embodiments, the preparation method of the ginger extract comprises water extraction.

[0065] In some more preferred embodiments, the preparation method of the ginger extract comprises the following steps: crushing the dried ginger, adding purified water at a solid-liquid ratio of 1:4, extracting at 60-70°C for 1-5 hours, and collecting the extract; concentrating the extract at 70-80°C to a paste with a solid content greater than 60wt%.

[0066] The second aspect of the present invention provides a method for preparing galangal stomachic instant rice paste, comprising the following steps: mixing the raw materials for preparing galangal stomachic instant rice paste according to weight parts, adding purified water, passing through a colloid mill, vacuum puffing and drying, making into flakes or powders, and sealing and packaging.

[0067] The amount of pure water added is such that the solid content of the system is 10 to 40 wt % (preferably 20 to 30 wt %).

[0068] The present invention has at least the following beneficial effects:

[0069] 1. The galangal stomachic instant rice paste provided by the present invention is rich in substances such as galangin, diphenylheptane A, and quercetin;

[0070] 2. The instant rice paste with galangal for strengthening stomach provided by the present invention is applied to the preparation of the instant rice paste, and combined with the property of ginger in warming the stomach and dispelling cold, it has the efficacy of warming the stomach and dispelling cold, and assisting in relieving the symptoms of spleen and stomach deficiency and cold pain in the heart and abdomen;

[0071] 3. The instant galangal rice paste for strengthening the stomach provided by the present invention uses materials such as young galangal sprouts and rhizomes of galangal, which is a diversified development and application of galangal and has the effect of promoting the development of the galangal industry;

[0072] 4. The instant rice paste with galangal for strengthening the stomach provided by the present invention has the characteristics of reasonable formula, comfortable taste and health preservation;

[0073] 5. The specific emulsification and embedding means used in the present invention can better remove the smell of soy protein isolate and increase the fragrance of rice paste. At the same time, it can also protect the loss of nutrients such as active ingredients in galangal and soy protein isolate in rice paste during processing, thereby maximally maintaining the nutrition, activity and flavor of the rice paste.

[0074] 6. The present invention uses galangal combined with yam and other medicine and food materials with stomach-harmony effects to invent a galangal stomach-strengthening convenient rice paste, which can meet the dietary needs of the above-mentioned people and people with the above-mentioned symptoms, and has good market value and prospects. DETAILED DESCRIPTION

[0075] In order to better understand the present invention, the following are several specific embodiments of the present invention, but the present invention is not limited to the following embodiments.

[0076] Example 1

[0077] A galangal stomachic instant rice paste, the raw materials of which include, by weight, 3 parts of galangal young shoot superfine powder, 9.54 parts of galangal rhizome extract emulsion, 84 parts of coarse grain powder containing polished round-grained rice, 0.6 parts of black tea extract, 0.8 parts of tangerine peel extract, and 0.9 parts of ginger extract;

[0078] The preparation method of galangal young sprout ultrafine powder is as follows: galangal young sprout (variety is honeycomb ginger) is washed to remove impurities, dried and then blanched at 185°C; the blanched galangal young sprout is pre-dried at 55°C until the moisture content of the galangal young sprout is less than 40wt% and then quickly dried at 90°C until the moisture content of the galangal young sprout is less than 10wt%, and then ultrafinely pulverized for 10 minutes (the average particle size of the galangal young sprout ultrafine powder is 30μm).

[0079] The preparation method of the galangal rhizome extract emulsion is as follows: remove impurities and roots from the galangal rhizome (variety is honeycomb ginger), cut into 5mm slices and dry at a constant temperature of 60°C; coarsely grind the dried galangal rhizome and pass it through a 20-mesh sieve to obtain galangal rhizome powder; extract the galangal rhizome powder using supercritical CO2, using anhydrous ethanol as an entrainer, extracting under the conditions of an ethanol to material ratio of 10:1, an extraction pressure of 20MPa, an extraction temperature of 40°C, an extraction time of 3h, and a CO2 flow rate of 25L / h to obtain an extract; concentrate the extract into an ethanol-free flavored paste; add purified water to the concentrated extract, stir to dissolve, and precipitate at 10000r / min. The mixture was centrifuged for 10 min and a precipitate was taken; the centrifuged precipitate was vacuum freeze-dried at a temperature of -50°C and a drying chamber pressure of 40 Pa for 20 h to obtain an Alpinia officinalis rhizome extract; Moringa seed oil was added to the freeze-dried Alpinia officinalis rhizome extract in a ratio of 1:1 (mass ratio), and ultrasonically dissolved at 40°C for 24 h to obtain a core material, and then soy protein isolate, β-cyclodextrin and behenic acid glyceryl were added to the core material for homogenization and emulsification to obtain a fluid final product, which is an emulsion of Alpinia officinalis rhizome extract (wherein the mass ratio of soy protein isolate to β-cyclodextrin is 1:3, the amount of core material added is 40wt%, and the amount of behenic acid glyceryl added is 2wt%).

[0080] The preparation method of coarse grain powder containing polished rice is as follows: 6 parts, 8 parts and 70 parts of dried yam, coix seed and polished rice are mixed by weight and ultrafinely ground for 10 minutes to obtain coarse grain powder containing polished rice (with an average particle size of 30 μm). The dried yam, coix seed and polished rice are all commercially available.

[0081] The preparation method of black tea extract is as follows: removing impurities from black tea leaves, adding purified water at a solid-liquid ratio of 1:5, extracting at 60° C. for 3 hours, collecting the extract; concentrating the extract at 75° C. to a paste with a solid content of 65wt%;

[0082] The preparation method of tangerine peel extract is as follows: removing impurities from tangerine peel and crushing it, adding purified water at a solid-liquid ratio of 1:4, extracting at 70° C. for 2 hours, and collecting the extract; concentrating the extract at 75° C. to a paste with a solid content of 65wt%;

[0083] The preparation method of ginger extract is as follows: crushing dried ginger slices, adding purified water at a solid-liquid ratio of 1:4, extracting at 65°C for 1.5 hours, collecting the extract; and concentrating the extract at 75°C to a paste with a solid content of 65wt%.

[0084] The method for preparing the instant galangal stomachic rice paste comprises the following steps: mixing the raw materials for preparing the instant galangal stomachic rice paste according to weight parts, adding purified water, passing through a colloid mill, vacuum puffing and drying, making the mixture into flakes or powders, and sealing and packaging (the amount of purified water added is such that the solid content of the system is 25wt%).

[0085] Example 2

[0086] A first aspect of the present embodiment provides a galangal stomachic instant rice paste, wherein the raw materials of the galangal stomachic instant rice paste include, by weight, 4 parts of galangal young shoot superfine powder, 13.04 parts of galangal rhizome extract emulsion, 94 parts of coarse grain powder containing polished round-grained rice, 0.8 parts of black tea extract, 0.6 parts of tangerine peel extract, and 0.6 parts of ginger extract;

[0087] The preparation methods of galangal young shoot ultrafine powder, galangal rhizome extract emulsion, coarse grain powder containing polished round-grain rice, black tea extract, tangerine peel extract, ginger extract and galangal stomachic instant rice paste are all the same as those in Example 1, except that, in the process of preparing the coarse grain powder containing polished round-grain rice, the weight portions of dried yam, coix seed and polished round-grain rice are 8 parts, 6 parts and 80 parts respectively.

[0088] Comparative Example 1

[0089] The raw materials of the galangal stomachic instant rice paste include, by weight, 3 parts of galangal sprout superfine powder, 9.54 parts of galangal rhizome extract, 84 parts of coarse grain powder including polished round-grained rice, 0.6 parts of black tea extract, 0.8 parts of tangerine peel extract, 0.9 parts of ginger extract, and 3 parts of soy protein isolate;

[0090] The preparation methods of galangal young shoot ultrafine powder, the preparation method of coarse grain powder containing polished round-grain rice, the preparation method of black tea extract, the preparation method of tangerine peel extract, the preparation method of ginger extract, and the preparation method of galangal stomachic instant rice paste are all the same as those in Example 1. The difference is that the preparation method of the galangal rhizome extract is as follows: remove impurities and roots from the galangal rhizome (variety is honeycomb ginger), cut into 5mm slices and dry at a constant temperature of 60°C; coarsely grind the dried galangal rhizome and pass it through a 20-mesh sieve to obtain galangal rhizome powder; extract the galangal rhizome powder using supercritical CO2, using anhydrous ethanol as an entrainer, and extracting under the conditions of an ethanol to material ratio of 10:1, an extraction pressure of 20MPa, an extraction temperature of 40°C, an extraction time of 3h, and a CO2 flow rate of 25L / h to obtain an extract; concentrate the extract into an ethanol-free concentrated paste; add pure water to the concentrated extract, stir and dissolve, and centrifuge at 10000r / min for 10min, and the centrifugal precipitate is the galangal rhizome extract.

[0091] Comparative Example 2

[0092] The raw materials of the galangal stomachic instant rice paste include, by weight, 3 parts of galangal sprout superfine powder, 9.54 parts of galangal rhizome extract core material, 84 parts of coarse grain powder including polished round-grained rice, 0.6 parts of black tea extract, 0.8 parts of tangerine peel extract, 0.9 parts of ginger extract, and 3 parts of soy protein isolate;

[0093] The preparation method of superfine powder of young galangal shoots, the preparation method of coarse grain powder containing polished round-grain rice, the preparation method of black tea extract, the preparation method of tangerine peel extract, the preparation method of ginger extract, and the preparation method of galangal stomachic convenient rice paste are all the same as those in Example 1. The difference is that the preparation method of the core material of galangal rhizome extract is as follows: remove impurities from galangal rhizomes (variety is honeycomb ginger), cut the roots into 5 mm slices and dry them at a constant temperature of 60°C; coarsely grind the dried galangal rhizomes and pass them through a 20-mesh sieve to obtain galangal rhizome powder; extract the galangal rhizome powder using supercritical CO2, using anhydrous ethanol as an entrainer, at an ethanol to material ratio of 10:1, extraction pressure of 20 MPa, extraction temperature of 40°C, extraction time of 3 h, and CO2 flow rate of 25 L / h. Extraction to obtain an extract; concentrating the extract into an ethanol-free concentrated paste; adding purified water to the concentrated extract, stirring to dissolve and centrifuging at 10000r / min for 10min to obtain a precipitate; subjecting the centrifuged precipitate to vacuum freeze-drying at a heating plate temperature of -50°C and a drying chamber pressure of 40Pa for 20h to obtain an Alpinia officinalis rhizome extract; adding Moringa seed oil to the freeze-dried Alpinia officinalis rhizome extract at a ratio of 1:1 (mass ratio), ultrasonically dissolving at 40°C for 24h to obtain an Alpinia officinalis rhizome extract core material.

[0094] Performance Testing

[0095] (1) Preparation of sample solution: Accurately weigh 1.00 g of the prepared galangal stomachic instant rice paste (the galangal stomachic instant rice paste of test examples 1 to 4, respectively), add anhydrous methanol to dissolve, and dilute to a 10 mL volumetric flask for later use;

[0096] (2) HPLC analysis, the conditions are as follows: the chromatographic column is Shim-pack VP-ODS (2.00 mm×250 mm, 5 μm); the mobile phase A is 0.1% acetic acid aqueous solution, and the mobile phase B is acetonitrile; the gradient elution method is adopted: 0-5 min, 35%-60% B, 5-10 min, 60% B, 10-15 min, 60% B-35% B, 15-20 min, 35% B. The flow rate is 0.8 mL / min, the detection wavelength is 280 nm, the column temperature is 35°C, and the injection volume is 20 μL;

[0097] (3) Compare the results of determination of galangin standard, diphenylheptane A standard and quercetin standard under the conditions of (2) to calculate the content of the corresponding components in the sample.

[0098] The test results are shown in Table 1:

[0099] Table 1

[0100]

Claims

1. A method for preparing galangal stomachic instant rice paste, characterized in that: The following steps are involved: The raw materials for preparing the galangal stomachic instant rice paste are mixed according to weight parts, and then purified water is added, and the mixture is passed through a colloid mill and vacuum expanded and dried to form a sheet or powder, and sealed and packaged; The raw materials of the galangal stomachic instant rice paste include, by weight, 3 parts of galangal sprout superfine powder, 9.54 parts of galangal rhizome extract emulsion, 84 parts of coarse grain powder containing polished round-grained rice, 0.6 parts of black tea extract, 0.8 parts of tangerine peel extract, and 0.9 parts of ginger extract; The preparation method of the galangal young sprout ultrafine powder is as follows: the galangal young sprout, which is honeycomb ginger, is washed to remove impurities and dried, and then blanched at 185° C.; the blanched galangal young sprout is pre-dried at 55° C. until the moisture content of the galangal young sprout is less than 40wt%, and then rapidly dried at 90° C. until the moisture content of the galangal young sprout is less than 10wt%, and then ultrafinely pulverized for 10 minutes, and the average particle size of the galangal young sprout ultrafine powder is 30μm; The preparation method of the galangal rhizome extract emulsion is as follows: remove impurities and roots from the galangal rhizome, which is honeycomb ginger, cut into 5 mm slices and dry at a constant temperature of 60°C; coarsely grind the dried galangal rhizome and pass it through a 20-mesh sieve to obtain galangal rhizome powder; extract the galangal rhizome powder using supercritical CO2, using anhydrous ethanol as an entrainer, extracting under the conditions of ethanol to material ratio of 10:1, extraction pressure of 20 MPa, extraction temperature of 40°C, extraction time of 3 h, and CO2 flow rate of 25 L / h to obtain an extract; concentrate the extract into an ethanol-free flavor paste; add purified water to the concentrated extract, stir and dissolve, centrifuge at 10000 r / min for 10 min, and take the precipitate; The centrifugal precipitate was vacuum freeze-dried at a temperature of -50°C and a drying chamber pressure of 40 Pa for 20 hours to obtain an Alpinia officinalis rhizome extract; Moringa seed oil was added to the freeze-dried Alpinia officinalis rhizome extract in a ratio of 1:1 (mass ratio), and ultrasonically dissolved at 40°C for 24 hours to obtain a core material, and then soy protein isolate, β-cyclodextrin, and behenic acid glyceryl were added to the core material for homogenization and emulsification to obtain a fluid final product, which is an Alpinia officinalis rhizome extract emulsion, wherein the mass ratio of soy protein isolate to β-cyclodextrin is 1:3, the amount of core material added is 40wt%, and the amount of behenic acid glyceryl added is 2wt%; The preparation method of the coarse grain powder containing polished rice is as follows: 6 parts, 8 parts and 70 parts of dried yam, coix seed and polished rice are mixed according to weight, and ultrafinely ground for 10 minutes to obtain the coarse grain powder containing polished rice, with an average particle size of 30 μm, wherein the dried yam, coix seed and polished rice are all commercially available; The preparation method of black tea extract is as follows: remove impurities from black tea leaves, add purified water at a solid-liquid ratio of 1:5, extract at 60°C for 3 hours, collect the extract; concentrate the extract at 75°C to a paste with a solid content of 65wt%; The preparation method of tangerine peel extract is as follows: remove impurities from tangerine peel and crush it, add purified water at a solid-liquid ratio of 1:4, extract at 70°C for 2h, and collect the extract; The extract was concentrated at 75°C to a paste having a solid content of 65 wt%; The preparation method of ginger extract is as follows: crush dried ginger slices, add purified water at a solid-liquid ratio of 1:4, extract at 65°C for 1.5 hours, collect the extract; and concentrate the extract at 75°C to a paste with a solid content of 65wt%.

2. A method for preparing galangal stomachic instant rice paste, characterized in that: The following steps are involved: The raw materials for preparing the galangal stomachic instant rice paste are mixed according to weight parts, and then purified water is added, and the mixture is passed through a colloid mill and vacuum expanded and dried to form a sheet or powder, and sealed and packaged; The raw materials of the galangal stomachic instant rice paste include, by weight, 4 parts of galangal sprout superfine powder, 13.04 parts of galangal rhizome extract emulsion, 94 parts of coarse grain powder containing polished round-grained rice, 0.8 parts of black tea extract, 0.6 parts of tangerine peel extract, and 0.6 parts of ginger extract; The preparation method of the galangal young sprout ultrafine powder is as follows: the galangal young sprout, which is honeycomb ginger, is washed to remove impurities and dried, and then blanched at 185° C.; the blanched galangal young sprout is pre-dried at 55° C. until the moisture content of the galangal young sprout is less than 40wt%, and then rapidly dried at 90° C. until the moisture content of the galangal young sprout is less than 10wt%, and then ultrafinely pulverized for 10 minutes, and the average particle size of the galangal young sprout ultrafine powder is 30μm; The preparation method of the galangal rhizome extract emulsion is as follows: remove impurities and roots from the galangal rhizome, which is honeycomb ginger, cut into 5 mm slices and dry at a constant temperature of 60°C; coarsely grind the dried galangal rhizome and pass it through a 20-mesh sieve to obtain galangal rhizome powder; extract the galangal rhizome powder using supercritical CO2, using anhydrous ethanol as an entrainer, extracting under the conditions of ethanol to material ratio of 10:1, extraction pressure of 20 MPa, extraction temperature of 40°C, extraction time of 3 h, and CO2 flow rate of 25 L / h to obtain an extract; concentrate the extract into an ethanol-free flavor paste; add purified water to the concentrated extract, stir and dissolve, centrifuge at 10000 r / min for 10 min, and take the precipitate; The centrifugal precipitate was vacuum freeze-dried at a temperature of -50°C and a drying chamber pressure of 40 Pa for 20 hours to obtain an Alpinia officinalis rhizome extract; Moringa seed oil was added to the freeze-dried Alpinia officinalis rhizome extract in a ratio of 1:1 (mass ratio), and ultrasonically dissolved at 40°C for 24 hours to obtain a core material, and then soy protein isolate, β-cyclodextrin, and behenic acid glyceryl were added to the core material for homogenization and emulsification to obtain a fluid final product, which is an Alpinia officinalis rhizome extract emulsion, wherein the mass ratio of soy protein isolate to β-cyclodextrin is 1:3, the amount of core material added is 40wt%, and the amount of behenic acid glyceryl added is 2wt%; The preparation method of the coarse grain powder containing polished rice is as follows: 8 parts, 6 parts and 80 parts of dried yam, coix seed and polished rice are mixed according to weight parts and ultrafinely ground for 10 minutes to obtain the coarse grain powder containing polished rice with an average particle size of 30 μm, and the dried yam, coix seed and polished rice are all commercially available; The preparation method of black tea extract is as follows: remove impurities from black tea leaves, add purified water at a solid-liquid ratio of 1:5, extract at 60°C for 3 hours, collect the extract; concentrate the extract at 75°C to a paste with a solid content of 65wt%; The preparation method of tangerine peel extract is as follows: remove impurities from tangerine peel and crush it, add purified water at a solid-liquid ratio of 1:4, extract at 70°C for 2h, and collect the extract; The extract was concentrated at 75°C to a paste having a solid content of 65 wt%; The preparation method of ginger extract is as follows: crush dried ginger slices, add purified water at a solid-liquid ratio of 1:4, extract at 65°C for 1.5 hours, collect the extract; and concentrate the extract at 75°C to a paste with a solid content of 65wt%.

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